JavaWeb学习之Hibernate框架（二）

hibernateAPI详解

Configuration

       创建

      

      加载主配置

      

      创建sessionFactory

      

SessionFactory

      

      

session

     

     获得事务

      

     增

      

     查

     

     改

      

     删

       

Transaction封装事务的操作

      打开事务

      

      

     提交事务

       

     回滚事务

      

CRM练习：保存客户

CRM：customer　relation　manager　　客户关系管理系统

１、创建web项目

２、导包

　　hibernate包、数据库驱动包、标签库包、BeanＵtiｌs包

３、引入静态页面

４、搭建hibernate框架

５、思路分析

 　

６、开发

７、测试

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package com.web;
 
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.util.Map;
 
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
import org.apache.commons.beanutils.BeanUtils;
 
import com.domain.Customer;
import com.service.CustomerService;
 
public class AddCustomerServlet extends HttpServlet {
    private CustomerService customerService = new CustomerService();
 
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // 1、获取数据
        request.setCharacterEncoding("UTF-8");
        Map<String, String[]> map = request.getParameterMap();
        // 2、创建对象
        Customer customer = new Customer();
        // 3、封装数据
        try {
            BeanUtils.populate(customer, map);
        } catch (IllegalAccessException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        // 4、调用service中的保存方法
        customerService.save(customer);
        // 5、重定向
        response.sendRedirect(request.getContextPath()+"/ListCustomerServlet");
    }
 
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doGet(request, response);
    }
}

　　

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package com.service;
 
import com.dao.CustomerDao;
import com.domain.Customer;
 
public class CustomerService {
    private CustomerDao customerDao = new CustomerDao();
 
    public void save(Customer customer) {
        customerDao.save(customer);
    }
}

　　

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package com.dao;
 
import org.hibernate.Session;
import org.hibernate.Transaction;
 
import com.domain.Customer;
import com.util.HibernateUtil;
 
public class CustomerDao {
    public void save(Customer customer) {
        Session session = HibernateUtil.openSession();
        Transaction tx = session.beginTransaction();
        session.save(customer);
        tx.commit();
        session.close();
    }
}

　　

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package com.domain;
 
import java.util.HashSet;
import java.util.Set;
 
public class Customer {
    private Long cust_id;
    // private String cust_id;
    private String cust_name;
    private Long cust_user_id;
    private Long cust_create_id;
    private String cust_source;
    private String cust_industry;
    private String cust_level;
    private String cust_linkman;
    private String cust_phone;
    private String cust_mobile;
    //表达与联系人表一对多的关系
    private Set<LinkMan> linkmens =new HashSet<LinkMan>();
     
    public Set<LinkMan> getLinkmens() {
        return linkmens;
    }
 
    public void setLinkmens(Set<LinkMan> linkmens) {
        this.linkmens = linkmens;
    }
 
    public Long getCust_id() {
        return cust_id;
    }
 
    public void setCust_id(Long cust_id) {
        this.cust_id = cust_id;
    }
 
    public String getCust_name() {
        return cust_name;
    }
 
    // public String getCust_id() {
    // return cust_id;
    // }
    // public void setCust_id(String cust_id) {
    // this.cust_id = cust_id;
    // }
    public void setCust_name(String cust_name) {
        this.cust_name = cust_name;
    }
 
    public Long getCust_user_id() {
        return cust_user_id;
    }
 
    public void setCust_user_id(Long cust_user_id) {
        this.cust_user_id = cust_user_id;
    }
 
    public Long getCust_create_id() {
        return cust_create_id;
    }
 
    public void setCust_create_id(Long cust_create_id) {
        this.cust_create_id = cust_create_id;
    }
 
    public String getCust_source() {
        return cust_source;
    }
 
    public void setCust_source(String cust_source) {
        this.cust_source = cust_source;
    }
 
    public String getCust_industry() {
        return cust_industry;
    }
 
    public void setCust_industry(String cust_industry) {
        this.cust_industry = cust_industry;
    }
 
    public String getCust_level() {
        return cust_level;
    }
 
    public void setCust_level(String cust_level) {
        this.cust_level = cust_level;
    }
 
    public String getCust_linkman() {
        return cust_linkman;
    }
 
    public void setCust_linkman(String cust_linkman) {
        this.cust_linkman = cust_linkman;
    }
 
    public String getCust_phone() {
        return cust_phone;
    }
 
    public void setCust_phone(String cust_phone) {
        this.cust_phone = cust_phone;
    }
 
    public String getCust_mobile() {
        return cust_mobile;
    }
 
    public void setCust_mobile(String cust_mobile) {
        this.cust_mobile = cust_mobile;
    }
 
    @Override
    public String toString() {
        return "Customer [cust_id=" + cust_id + ", cust_name=" + cust_name + ", cust_user_id=" + cust_user_id
                + ", cust_create_id=" + cust_create_id + ", cust_source=" + cust_source + ", cust_industry="
                + cust_industry + ", cust_level=" + cust_level + ", cust_linkman=" + cust_linkman + ", cust_phone="
                + cust_phone + ", cust_mobile=" + cust_mobile + "]";
    }
 
}

　　

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping  package="com.domain">
    <!-- class中的name写实体类名，table写数据库中对应的表名 -->
    <class name="Customer" table="cst_customer">
        <!--id标签代表主键 -->
        <id name="cust_id" column="cust_id">
            <!-- 代表主键的生成模式 -->
            <generator class="native"></generator>
            <!-- identity适用于Mysql主键生成策略
            <generator class="identity"></generator> -->
        </id>
        <property name="cust_name" column="cust_name" ></property>
        <property name="cust_user_id" column="cust_user_id" ></property>
        <property name="cust_create_id" column="cust_create_id" ></property>
        <property name="cust_source" column="cust_source" ></property>
        <property name="cust_industry" column="cust_industry" ></property>
        <property name="cust_level" column="cust_level" ></property>
        <property name="cust_linkman" column="cust_linkman" ></property>
        <property name="cust_phone" column="cust_phone" ></property>
        <property name="cust_mobile" column="cust_mobile" ></property>
        <!-- 配置一对多的关系 -->
        <set name="linkmens">
             <key  column="lkm_cust_id"></key>
             <one-to-many  class="LinkMan"/>
        </set>
    </class>
</hibernate-mapping>

　　

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package com.util;
 
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
 
public class HibernateUtil {
    private static SessionFactory sf;
    static{
        //加载hibernate主配置文件
        Configuration conf=new Configuration().configure();
        sf=conf.buildSessionFactory();
    }
    //获得全新的session
    public static Session openSession(){
        return sf.openSession();
    }
    //获取一个与当前线程绑定的session
    public static Session getCurrentSession(){
        return sf.getCurrentSession();
    }
}

　　

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
    "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
    "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
    <!--  #hibernate.dialect org.hibernate.dialect.MySQLDialect
             #hibernate.dialect org.hibernate.dialect.MySQLInnoDBDialect
             #hibernate.dialect org.hibernate.dialect.MySQLMyISAMDialect
             #hibernate.connection.driver_class com.mysql.jdbc.Driver
             #hibernate.connection.url jdbc:mysql:///test
             #hibernate.connection.username gavin
             #hibernate.connection.password-->
     <!--必须配置的5条 -->
        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="hibernate.connection.url">jdbc:mysql:///crm?useUnicode=true&characterEncoding=UTF8</property>
        <property name="hibernate.connection.username">root</property>
        <property name="hibernate.connection.password">123456</property>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
        <!--可选配置
        #hibernate.show_sql true   自动打印sql在控制台
        #hibernate.format_sql true  规范格式化打印在控制台的sql-->
        <property name="hibernate.show_sql">true</property>
        <property name="hibernate.format_sql">true</property>
        <!-- 配置hibernate操作数据库隔离级别 -->
        <!-- #hibernate.connection.isolation  4 -->
        <property name="hibernate.connection.isolation">4</property>
        <!-- 获得与当前线程绑定session对象时必须要配置的 -->
        <property name="hibernate.current_session_context_class">thread</property>
        <!--     如果没有表就会自动生成表，如果有就会自动更新表
        #hibernate.hbm2ddl.auto update -->
        <property name="hibernate.hbm2ddl.auto">update</property>
        <mapping resource="com/domain/Customer.hbm.xml"/>
        <mapping resource="com/domain/LinkMan.hbm.xml"/>
        <mapping resource="com/domain/User.hbm.xml"/>
        <mapping resource="com/domain/Role.hbm.xml"/>
    </session-factory>
</hibernate-configuration>

　　

 

     

 

posted @   低调的小孩儿  阅读(159)  评论(0)  编辑  收藏  举报
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